AU8537298A - Electrets - Google Patents

Electrets

Info

Publication number: AU8537298A
Authority: AU; Australia
Prior art keywords: electrets
Prior art date: 1997-06-13
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Abandoned

Application number

AU85372/98A

Inventor

Wilfried Hatke

Gerhard Sessler

Guo-Mao Yang

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Ticona GmbH

Original Assignee

Ticona GmbH

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1997-06-13

Filing date

1998-06-12

Publication date

1998-12-30

1997-06-13 Priority claimed from DE1997125253 external-priority patent/DE19725253A1/en

1998-06-12 Application filed by Ticona GmbH filed Critical Ticona GmbH

1998-12-30 Publication of AU8537298A publication Critical patent/AU8537298A/en

Status Abandoned legal-status Critical Current

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G7/00—Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture
- H01G7/02—Electrets, i.e. having a permanently-polarised dielectric
- H01G7/021—Electrets, i.e. having a permanently-polarised dielectric having an organic dielectric
- H01G7/023—Electrets, i.e. having a permanently-polarised dielectric having an organic dielectric of macromolecular compounds
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49226—Electret making
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31678—Of metal
- Y10T428/31692—Next to addition polymer from unsaturated monomers
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31855—Of addition polymer from unsaturated monomers

Landscapes

Engineering & Computer Science (AREA)
Power Engineering (AREA)
Physics & Mathematics (AREA)
Spectroscopy & Molecular Physics (AREA)
Microelectronics & Electronic Packaging (AREA)
Manufacture Of Macromolecular Shaped Articles (AREA)
Compositions Of Macromolecular Compounds (AREA)
Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Chemical Or Physical Treatment Of Fibers (AREA)
Filtering Materials (AREA)

AU85372/98A 1997-06-13 1998-06-12 Electrets Abandoned AU8537298A (en)

Applications Claiming Priority (5)

Application Number	Priority Date	Filing Date	Title
DE1997125253 DE19725253A1 (en)	1997-06-13	1997-06-13	Electrets containing cyclo-olefin] copolymers
DE19725253		1997-06-13
DE19822381		1998-05-19
DE19822381		1998-05-19
PCT/EP1998/003537 WO1998056836A2 (en)	1997-06-13	1998-06-12	Electrets

Publications (1)

Publication Number	Publication Date
AU8537298A true AU8537298A (en)	1998-12-30

Family

ID=26037447

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AU85372/98A Abandoned AU8537298A (en)	1997-06-13	1998-06-12	Electrets

Country Status (7)

Country	Link
US (1)	US6489033B1 (en)
EP (1)	EP0988329B1 (en)
JP (1)	JP4437232B2 (en)
AU (1)	AU8537298A (en)
CA (1)	CA2293719C (en)
DE (1)	DE59806200D1 (en)
WO (1)	WO1998056836A2 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE10009646A1 (en) *	2000-03-01	2001-09-13	Ticona Gmbh	Polymer mixture containing amorphous polyolefin, useful for preparing e.g. axially oriented films, has controllable relaxation and shrinkage properties
JP4963756B2 (en) *	2001-02-09	2012-06-27	株式会社ユポ・コーポレーション	Void-containing stretched thermoplastic resin film and method for producing the same
WO2007025735A1 (en) *	2005-08-31	2007-03-08	Gambro Lundia Ab	Method and apparatus for the removal of immune cells
FI20070155A0 (en) *	2007-02-23	2007-02-23	Panphonics Oy	Elektreettilevyrakenne
US20080287614A1 (en) *	2007-05-15	2008-11-20	Sonoco Development, Inc.	Polypropylene-Based Polymer Blend of Enhanced Melt Strength
EP2256761A4 (en) *	2008-02-22	2011-08-31	Asahi Glass Co Ltd	Electret and electrostatic induction conversion device
JP5536309B2 (en) *	2008-03-06	2014-07-02	旭硝子株式会社	Electret manufacturing method and electrostatic induction conversion element manufacturing method
KR20110002458A (en)	2008-03-27	2011-01-07	아사히 가라스 가부시키가이샤	Electret and Electrostatic Induction Converters
CN101981456B (en) *	2008-03-31	2013-11-06	旭硝子株式会社	Acceleration sensor device and sensor network system
CN102007002B (en)	2008-04-17	2014-03-19	旭硝子株式会社	Electret and electrostatic induction conversion device
JP5527211B2 (en)	2008-09-19	2014-06-18	旭硝子株式会社	Electret, electrostatic induction conversion element, and method for manufacturing electret
EP2194549A1 (en) *	2008-12-08	2010-06-09	Sony Corporation	A method of producing an electret material
TWI434576B (en) *	2010-02-02	2014-04-11	Ef Materials Ind Inc	Polymeric electret film and method of manufacturing the same
EP2450974A1 (en) *	2010-11-03	2012-05-09	Bayer MaterialScience AG	Polymer layer structure with ferroelectric characteristics and method for producing same
JP6200799B2 (en) *	2012-12-27	2017-09-20	積水化学工業株式会社	Electret sheet
JP5505538B2 (en) *	2013-04-22	2014-05-28	旭硝子株式会社	Electret manufacturing method and electrostatic induction conversion element manufacturing method
US11723280B2 (en)	2017-03-03	2023-08-08	Mitsui Chemicals, Inc.	Electretized film and electronic device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3711941A (en)	1970-11-02	1973-01-23	Bell Telephone Labor Inc	Fabrication of electret transducer elements using low energy electron beam
DD211801A1 (en)	1982-11-30	1984-07-25	Leuna Werke Veb	METHOD FOR MODIFYING THE SURFACE PROPERTIES OF OLEFIN COPOLYMERS
US4944854A (en)	1983-11-08	1990-07-31	Celanese Corporation	Electret process and products
JPH04326910A (en)	1991-04-25	1992-11-16	Toyobo Co Ltd	Production of electret filter
JPH0841260A (en)	1994-05-25	1996-02-13	Mitsui Petrochem Ind Ltd	Electret
DE19539093A1 (en)	1995-10-20	1997-04-24	Hoechst Ag	Metallized polyolefin film
DE19647954A1 (en) *	1996-11-20	1998-06-04	Hoechst Ag	Biaxially oriented film made from cycloolefinic polymers, process for their production and their use

1998
- 1998-06-12 WO PCT/EP1998/003537 patent/WO1998056836A2/en active IP Right Grant
- 1998-06-12 DE DE59806200T patent/DE59806200D1/en not_active Expired - Lifetime
- 1998-06-12 AU AU85372/98A patent/AU8537298A/en not_active Abandoned
- 1998-06-12 EP EP98936328A patent/EP0988329B1/en not_active Expired - Lifetime
- 1998-06-12 JP JP50162699A patent/JP4437232B2/en not_active Expired - Lifetime
- 1998-06-12 US US09/445,553 patent/US6489033B1/en not_active Expired - Fee Related
- 1998-06-12 CA CA 2293719 patent/CA2293719C/en not_active Expired - Fee Related

Also Published As

Publication number	Publication date
EP0988329B1 (en)	2002-11-06
WO1998056836A3 (en)	1999-03-04
CA2293719A1 (en)	1998-12-17
CA2293719C (en)	2008-08-12
WO1998056836A2 (en)	1998-12-17
US6489033B1 (en)	2002-12-03
DE59806200D1 (en)	2002-12-12
JP2002505034A (en)	2002-02-12
JP4437232B2 (en)	2010-03-24
EP0988329A2 (en)	2000-03-29

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AU9414098A (en)	1998-11-27	Ascorbyl-phosphoryl-cholesterol
AU6598798A (en)	1998-11-19	Resorcinyl-triazines
AU1027499A (en)	1999-04-23	32P-polyphosphazene
AU9513298A (en)	1999-04-23	Fluoranthenopyrans
AU8537298A (en)	1998-12-30	Electrets
AU5272198A (en)	1998-07-30	EMP-charge-eliminator
AU4117497A (en)	1999-03-01	Micropolarimeter
AU6998698A (en)	1998-12-10	Dioxacycloalkan-8-one
AU6185898A (en)	1998-09-18	Clavaspirins
AU6525998A (en)	1998-10-22	Improved metallo-endopeptidases
AU7761998A (en)	1998-12-11	Korrosionsschutzanstrichstoff
AU8214598A (en)	1999-01-04	3-benzylpiperidine
AU4469997A (en)	1999-04-05	Heregulin-gamma
AU5391798A (en)	1998-08-20	Thiamacrolides
AU8991998A (en)	1999-03-22	Renovative pipeliner
AU9183798A (en)	1999-03-22	Catamaran - bicycle - kayak
AU5540298A (en)	1998-09-24	Rockbolts
AU6060598A (en)	1998-10-08	Multi-hopper
AU7780498A (en)	1998-12-21	Cafetiere
AU8121298A (en)	1999-01-04	G-seat
AU6507298A (en)	1998-09-22	Renovative pipeliner
AU6237398A (en)	1999-07-19	N-het-substituted glycerophosphoethanolamines
AU5987098A (en)	1998-08-03	Capacitor

Legal Events

Date	Code	Title	Description
2000-02-24	MK6	Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase